Question

The mathematical equation for magnetic field lines of force is

• A. $\bigtriangledown \cdot B=0$
• B. $\bigtriangledown\cdot B\ne 0$
• C. $\bigtriangledown \cdot B >0$
• D. $\bigtriangledown \cdot B < 0$

Answer 1

Answer: (A)

$\bigtriangledown \cdot B=0$

Answer 2

From Marwells sets of equations for electromagnetism, the equation reprosenting magnetic field lines is, $\bigtriangledown \cdot B=0$